[FFmpeg-trac] #3455(swresample:new): aresample=matrix_encoding=dplii doesn't downmix backleft and center correctly
FFmpeg
trac at avcodec.org
Wed Mar 12 23:31:13 CET 2014
#3455: aresample=matrix_encoding=dplii doesn't downmix backleft and center
correctly
------------------------------------+--------------------------------------
Reporter: Peter | Owner:
Type: defect | Status: new
Priority: normal | Component: swresample
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
------------------------------------+--------------------------------------
Comment (by Peter):
peter at Chip /run/media/peter/FRAPs/LetsPlay $ ~/mplayer/ffmpeg/ffmpeg -i
surround_blbrc.wav -af "aresample=matrix_encoding=dplii" -ac 2
dplii_blbrc.wav
ffmpeg version git-2014-03-09-8dfd0e6 Copyright (c) 2000-2014 the FFmpeg
developers
built on Mar 9 2014 22:53:26 with gcc 4.8.2 (Gentoo 4.8.2 p1.3r1,
pie-0.5.8r1)
configuration: --enable-libx264 --enable-gpl
libavutil 52. 66.101 / 52. 66.101
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 34.100 / 55. 34.100
libavdevice 55. 11.100 / 55. 11.100
libavfilter 4. 3.100 / 4. 3.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
Guessed Channel Layout for Input Stream #0.0 : 5.1
Input #0, wav, from 'surround_blbrc.wav':
Duration: 00:00:01.01, bitrate: 4608 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 5.1,
s16, 4608 kb/s
File 'dplii_blbrc.wav' already exists. Overwrite ? [y/N] y
Output #0, wav, to 'dplii_blbrc.wav':
Metadata:
ISFT : Lavf55.34.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
stereo, s16, 1536 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le -> pcm_s16le)
Press [q] to stop, [?] for help
size= 189kB time=00:00:01.01 bitrate=1536.6kbits/s
video:0kB audio:189kB subtitle:0 data:0 global headers:0kB muxing overhead
0.041252%
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3455#comment:2>
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